package com.roytrack.dailytest.collection;

import java.util.concurrent.ConcurrentHashMap;

/**
 * Created by roytrack on 2016-07-26.
 */
public class ConcurrentHashMapUse {

  public static void main(String[] args) {
    String sku = "600400003099";
    String sku2 = "600400003099";
    ConcurrentHashMap<String, String> map = new ConcurrentHashMap<>();
    map.put(sku2, "600400003099");
    System.out.println(map.get(sku));
  }
}
